/*
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details ( see the LICENSE file ).
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package org.gudy.azureus2.platform.unix;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintStream;

import org.gudy.azureus2.core3.config.COConfigurationManager;

public class ScriptAfterShutdown {
    private static PrintStream sysout;

    public static void main(String[] args) {
        // Set transitory so not everything gets loaded up. (such as the AEDiagnostic's tidy flag)
        System.setProperty("transitory.startup", "1");

        // Since stdout will be in a shell script, redirect any stdout not coming
        // from us to stderr
        sysout = System.out;
        try {
            System.setOut(new PrintStream(new FileOutputStream("/dev/stderr")));
        } catch (FileNotFoundException e) {
        }

        String extraCmds = COConfigurationManager.getStringParameter("scriptaftershutdown", null);
        if (extraCmds != null) {
            boolean exit = COConfigurationManager.getBooleanParameter("scriptaftershutdown.exit", false);
            if (exit) {
                COConfigurationManager.removeParameter("scriptaftershutdown.exit");
            }
            COConfigurationManager.removeParameter("scriptaftershutdown");
            COConfigurationManager.save();
            sysout.println(extraCmds);
            if (exit) {
                sysout.println("exit");
            }
        } else {
            log("No shutdown tasks to do");
        }
    }

    public static void addExtraCommand(String s) {
        String extraCmds = COConfigurationManager.getStringParameter("scriptaftershutdown", null);
        if (extraCmds == null) {
            extraCmds = s + "\n";
        } else {
            extraCmds += s + "\n";
        }
        COConfigurationManager.setParameter("scriptaftershutdown", extraCmds);
    }

    public static void setRequiresExit(boolean requiresExit) {
        if (requiresExit) {
            COConfigurationManager.setParameter("scriptaftershutdown.exit", true);
        }
    }

    private static void log(String string) {
        sysout.println("echo \"" + string.replaceAll("\"", "\\\"") + "\"");
    }
}
